.content {
    display: flex;

    .menu_box {
        flex-shrink: 0;
        width: 200px;
        height: 486px;
        border-radius: 4px 0px 0px 4px;
        background: rgba(239, 240, 243, 1);

        .cell {
            position: relative;
            height: 60px;
            text-align: center;
            line-height: 60px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 400;
            color: rgba(153, 153, 153, 1);
        }

        .active {
            background: #fff;
            font-size: 16px;
            font-weight: 500;
            color: rgba(48, 123, 255, 1);
        }

        .active:after {
            position: absolute;
            display: block;
            content: "";
            width: 2px;
            height: 60px;
            background: rgba(48, 123, 255, 1);
            right: 0;
            top: 0;
            bottom: 0;
        }
    }

    .content_box {
        flex: 1;
        background: #fff;
    }
}